EGR Valve – Accord 90-93

by spartanix on June 15, 2010

Testing Ported EGR Valve on Honda Accord 1990-1993

  1. Run Accord engine to operating temperature and allowit to idle. Attach a vacuum gauge to EGR vacuum hose. Locate EGR vacuum solenoid.
  2. Using a jumper wire, ground signal wire from ECM to EGR vacuum solenoid. Vacuum should be present at EGR vacuum hose. On some models, engine speed may have to be increased 3000-4000 RPM.
  3. Connect a vacuum pump to EGR valve. Start Accord engine. Apply vacuum to EGR valve. If engine runs rough or stalls, and gauge holds vacuum, EGR valve is functioning properly.

Leave a Comment

Previous post:

Next post: